HI there, my name is ***** ***** JustAnswer.com, let's try the following steps within iTunes to see if this helps:
Please follow following steps
1) Go to iTunes on computer
2) Go to iTunes store and "Sign in"
3) On the right hand side by " Qick Links " under that and click " Account " and sign in again.
4) You will your account information.
5) Go down you'll see " iTunes in iCloud" and click " Hidden Purchase" and go to " Manager" to "Unhidden"
Now you can able download whatever you miss on your purchased history on your iTunes.Let me know if this helps.Thanks!